I am using an Apple Time Capsule which has a disk error, so looking to replace it. I am considering buying either the MR2200AC or the RT6200Ac as my only router. I live in a small 1 bedroom apartment so do not need a mesh system. The modem is Spectrum provided with basic internet service. I don't need a super fast connection. I will be purchasing a separate NAS drive for Time Machine backups. With this in mind, I see local pricing for the MR2200AC is $139.00; the RT6200AC $199.00. For my simple purposes which would you purchase ? Is there some advantage to the RT6200 other than the SD card? I would appreciate your advice.